单词 | sector |
释义 | sector/ˈsɛktə /noun 1An area or portion that is distinct from others: operations in the southern sector of the North Sea...
Synonyms district, quarter, part, section, zone, precinct, borough, locality, neighbourhood, side; province, territory, division, region, area, belt, tract, locale North American informal hood 1.1A distinct part or branch of a nation’s economy or society or of a sphere of activity such as education: the government aimed to reassure the industrial and commercial sector...
Synonyms part, branch, arm, division, subdivision, area, department, category, field, sphere, layer, stratum, corner 1.2 Military A subdivision of an area for military operations.The First Battalion of the Black Watch is based in the British sector of southern Iraq, near Basra....
1.3 Computing A subdivision of a track on a magnetic disk.With the appropriate tools, you can create diskettes that have 80 sectors and 24 tracks per sector, giving 1,920KB per floppy....
2The plane figure enclosed by two radii of a circle or ellipse and the arc between them.For example, Figure 4a shows three such rings formed from the sectors and rectangle in Figure 3a....
3A mathematical instrument consisting of two arms hinged at one end and marked with sines, tangents, etc. for making diagrams.He also learned on his own how to use a compass, sector, and other instruments to make astronomical predictions, including that of eclipses. OriginLate 16th century (in sense 2, sense 3): from late Latin, a technical use of Latin sector 'cutter', from sect- 'cut off', from the verb secare. Rhymes |
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